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and then there are up to 142 other titles just like it.
How can I block or disallow this in robots.txt without blocking the directory/files and without having to use every number to up to 142?
if those urls are already indexed, blocking with robots.txt may not really solve your duplicate content problem nor will it prevent your url from being indexed in the future.
the proper way to solve this is probably to use 301 redirects to the canonical url.